Small influence of magnetic ordering on lattice dynamics in TaFe${}_{1.25}$Te${}_3$

Abstract

Raman scattering spectra of zigzag spin chain TaFe${}_{1.25}$Te${}_3$ single crystal are presented in a temperature range from 80 to 300 K. Nine Raman active modes of $A_g$ and $B_g$ symmetry are clearly observed and assigned by probing different scattering channels, which is confirmed by lattice dynamics calculations. Temperature dependence of the Raman modes linewidth is mainly governed by the lattice anharmonicity. The only deviation from the conventional behavior is observed for $A_g$ symmetry modes in a vicinity of the magnetic phase transition at $T_N\approx 200$ K. This implies that the electron-phonon interaction weakly changes with temperature and magnetic ordering, whereas small changes in the spectra near the critical temperature can be ascribed to spin fluctuations.

arXiv comment8 pages, 6 figures

References in corpus (33)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Phonons and related properties of extended systems from density-functional perturbation theory
• Surprises on the Way from 1D to 2D Quantum Magnets: the Novel Ladder Materials
• Superconductivity in Iron Compounds
• Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82
• First-order magnetic and structural phase transitions in Fe${}_{1+y}$Se${}_x$Te${}_{1-x}$
• Experiments on Ladders Reveal a Complex Interplay between a Spin-Gapped Normal State and Superconductivity
• A Novel Large Moment Antiferromagnetic Order in K0.8Fe1.6Se2 Superconductor
• The Unexpected Properties of Alkali Metal Iron Selenide Superconductors
• Phase Separation and Magnetic Order in K-doped Iron Selenide Superconductor
• Pressure-induced Superconductivity in the Iron-based Ladder Material BaFe2S3
• Electronic identification of the actual parental phase of KxFe2-ySe2 superconductor and its intrinsic mesoscopic phase separation
• Anisotropy in BaFe2Se3 single crystals with double chains of FeSe tetrahedra
• Phonon anomalies in pure and underdoped R{1-x}K{x}Fe{2}As{2} (R = Ba, Sr) investigated by Raman light scattering
• Lattice and electronic anomalies of CaFe_2As_2 studied by Raman spectroscopy
• Interplay between lattice and spin states degree of freedom in the FeSe superconductor: dynamic spin state instabilities
• Anomalous optical phonons in FeTe pnictides: spin state, magnetic order, and lattice anharmonicity
• A Raman study of the temperature and magnetic field dependence of electronic and lattice properties in MnSi
• Electron-phonon coupling in cuprate and iron-based superconductors revealed by Raman scattering
• Anomalous dependence of the c-axis polarized Fe B${}_{1g}$ phonon mode with Fe and Se concentrations in Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• BaFe2Se2O as an Iron-Based Mott Insulator with Antiferromagnetic Order
• Self-energy effects and electron-phonon coupling in Fe-As superconductors
• Temperature dependence and resonance effects in Raman scattering of phonons in NdFeAsO${}_x$F${}_{1-x}$ single crystals
• Evidence for electron-phonon interaction in Fe${}_{1-x}$M${}_x$Sb${}_2$ (M=Co, Cr) single crystals
• Microscopic coexistence of superconductivity and antiferromagnetism in underdoped Ba(Fe1-xRux)2As2
• Doping and Temperature Dependence of Raman Scattering of NdFeAsO1-xFx (x=0.0, 0.1, 0.2) Superconductor
• Lattice dynamics of KNi2Se2
• Raman scattering study of electron-doped Pr${}_x$Ca${}_{1-x}$Fe${}_2$As${}_2$ superconductors
• SDW transition of Fe1 zigzag chains and metamagnetic transition of Fe2 in TaFe${}_{1+y}$Te${}_3$
• Electronic and Magnetic Structures of Chain Structured Iron Selenide Compounds
• Insulating and metallic spin glass in K${}_x$Fe${}_{2-\delta -y}$Ni${}_y$Se${}_2$ (0.06 $\le$ $y$ $\le$ 1.44) single crystals
• Evidence of superconductivity-induced phonon spectra renormalization in alkali-doped iron selenides
• Raman spectroscopy of K_xCo_{2-y}Se_2 single crystals near the ferromagnet-paramagnet transition

Cited by in corpus (1)

• Interplay between local moment and itinerant magnetism in the layered metallic antiferromagnet TaFe${}_{1.14}$Te${}_3$